Improvement in ships  pumps



A. F. EELLS & S. C. LOUD.

SHIPS PUMP.

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ALBERT F. EELLS AND SAMUEL C. LOUD, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN SHIPS PUMPS.

Specification forming part of Letters Patent N o. 180,757, dated August8, 1876; application filed July 8, 1876.

To all whom it may concern Be it known that We, ALBERT F. 'EELLS andSAMUEL (l: LOUD, both of Boston, in the county of Suffolk and State ofMassachusetts, haveinvented certain new and useful Improvements inShips7 Pumps, of which the following is a specication:

The nature of our invention consists in the peculiar construction andarrangement of aJ double-acting diaphragm .-pump, which may be bestunderstood by reference to the drawings and description.

Figure 1 is a longitudinal vertical section of our invention. Fig. 2 isa cross vertical section of the same. Fig. 3 shows in plan theconnection between the rod to which the diaphragms are attached and thelever for operating the same.

Let A and A', Fig. 1, represent the two diaphragm pump-chambers, formedon the outside by the metal D D', and on the inside by the exiblediaphragms B B'. The two diaphragms B and B' are connected together by asingle rod, O, the ends` c and c', Fig. 3, being connected to thediaphragms B and B' by a screw, or by any other suitable device. Weoperate the rod C by the vertical lever H, which swings on the pivot K,Figs. 1 and 2,

the lever H being connected to the rod C by the yoke-link E, (see Fig.3,) and pins L and M. A double socket-piece, V, Fig. 1, is attached tothe top of the lever into which we insert the Working handles or brakesN N. P and P', Fig. l, are the inlet-pipes, and are governed by thevalves R and R. T, Figs. 1 and 2, represents the outlet or dischargepipe, which may be of any desired form nnd length. The valve S acts as acheck alternately for the openings X and X', Fig. l.

It may be desirable, in some cases, to have openings in the outside ofthe pump-chambers A and A for the purpose of letting out the confinedair, or for admitting Water for starting the pumps.

We claim as our invention- The combination of the operating-lever H, theyoke-link E, and the rod C, with the diaphragms B and B', all operatingtogether with the valves R, R', and S, substantially as described, andfor the purpose set forth.

ALBERT F. EELLS. SAMUEL C. LOUD. Witnesses:

FRANK G. PARKER, GEORGE J EPsoN.

